Type-writing machine.



H. L. FRlTZE.

TYPE WRITING MACHINE. APPLICATION FILED MAR-8.1910.

Patented Nov. 9, 1915."

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HENRY L. FREEZE, 0F JERSEY CITY, NEW JERSEY, ASSIGNOR T0 UNDERWOOD TYPE- WRITER COMPANY, OF NEW YGRK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Application filed March 8, 1910. Serial No. 547,964.

To (ZZZ whom it may concern:

Be 1t known that I, HENRY L. Fnirzn, a citizen of the United States, residing in J ersey City, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Type-\Vriting Machines, of which the following is a specification. p

An object of this invention is to provide simple and practical means to enable the operator to economize time and labor by printinga date or the like at one stroke. I aim to provide a simple, efiicient and improved device for this purpose, easily and quickly operated, and readily applicable to existing machines.

To overcomethe diiiiculty of-obtaining a clearimpression of a plurality of characters simultaneously upon the paper, backed by the usual hard rubber platen surface and to enable the production of several carbon. duplicates, I provide an improved impression device. The type-carrier is swung downwardly until the types engages the paper, whereupon the operator presses the impression hammer or device toward theplaten.

Such pressure is at first resisted by a latch.

Upon the failure of the hammer to move, the operator brings an increasing ressure to bear thereagainst; and when su cient pressure is exerted, the latch suddenly gives way and allows the hammer to impinge smartly against the type-carrier. The sharp .blow thus delivered causes a clear impression of the types to be made on the paper notwithstanding the hardness of the'platen surface which forms a backing for the paper.

The type carrier is preferably supported above the printing line and spaced from the platen, so as not to interfere with the feeding of the work-sheets around the platen and 'the'usual manipulation of the worksheets,-and also so that when the type carrier is swung down to the platen, the types thereof print on a line above the normal printing line of the platen. The type carrier is supported on a swinging bracket above the platen so that it may be swung down to the platen to print thereon. The bracket is mounted on a pintle carried by an adjustable bracket arm supported on a tierod of the platen frame, said bracket arm being slidable along the tie-rod to bring the type carrier to any desired position along the platen. I

Other objects and advantages will appear hereinafter. p

In the accompanying drawings,-Figure 1 is a perspective view of one embodiment of the invention. Fig. 2 is a detail perspective view of one of the movable types. Fig. 3 is a cross sectional view through the device, showing its normal relation to the platen and platen frame. Fig. 4 is a side view of dating device, partly broken away to show the normal position of the impression hammer and its latch, and the reversible ribboll-feeding mechanism. .Fig. 5 is an end view of the device, the impression hammer having'just delivered its blow. Fig. 6 is a side view partially broken away to show the position of the impression hammer and latch, and the ribbon-feeding pawl just after the blow is delivered. Fig. 7 is a detail View of a paper-finger, showing an indicator.

Types 1 strike against the front of the usual platen 2, which by an axle 3 is jour naled in the ends 1 of a platen frame, con nected by a tie-rod 5. Pressure. rolls 6, 7 co operate with the platen to feed the paper 8.

To print or stamp a notice memorandum, or date upon the paper, I have provided an auxiliary type-carrier 9, supported to move to the platen-to elfect an imprint of movable types 10. This carrier is carried upon an arm 11, hinged by a pintle 12, to abracket 13,-secured by screws 14 onto the tie-rod 5. A spring 15 normally holds the type-carrier raised above the platen and out of the way of the paper. A stop 16 limits, the return movement of the carrier.

The type-carrier comprises-an inverted type-bed 17 having several depending ribs 1 depending ribs which support types indicating the day of the month, and which in turn are separated by a thick rib 20", from four Patented Nov. 9, 1915.

' faces of the type-bed and ribs. Said back stop crowds the types against" the locking rod to lock them against displacement. The back stop may be nicked or kerfed, as at 26, to facilitate its removal.

- When the types are to be changed, the set screws 14, holding the swinging bracket 13 on the tie rod 5, are loosened, and the typecarrier 9 and pintle, 12 are thrown backwardly around the tie rod as a center, to expose the types face upward. After manipulating the removal types, the bracket, pintle and type-carrier are swung back to normal position, shown by Fig. 3, and the set screws tightened to hold the bracket in place.

. The types are setagainst the platen by swinging the carrier downwardly about the pintle 12 as a center, until the types rest upon the platen or the paper thereon (as in Fig. 5), after which the spring 15 returns said carrier to normal position.

The carrier is provided with an impression hammer or device 34, mounted to slide up and down on a stem 33 on the type-carcarrier. Said impression hammer is normally held out of engagement with the typecarrier by a yielding latch 35, in the form of a spring, carried by the hammer and hav-.

ing an inclined shoulder 36 to engage an offset 37 on stem 33. The hammer may serve as a handle whereby to set the type-carrier against the platen, as apreliminary to the delivery of the printing blow thereagainst. Pressure against thehammer toward the platen, after the types are moved down to the platen, is resisted by the engagement of the shoulder with the offset, until force is applied sufficient to overcome such resistance, whereupon. the shoulder suddenly yields from and slips past the ofi'set, and permits the upper closed end of the hammer to strike sharply against the upper end of the striking stem 33, the force of which bloW is transmitted to the type-carrier and effects a clear impression of the types. A spring 38 returns the hammer to normal position,

' shown in Figs. 3 and 4. A'disk 38 connected with the hammer, engages the under face of the offset 37 to arrest the return of the hammer.

An inking ribbon 27-passes beneath the type faces and up through guide slots 28 formed in overhanging ledges 29 on the 40, hinged on the impression hammer 34, at 34, to swing into engagement with either ratchet wheel 41, 42, secured to the respective ribbon shafts 30. By swinging the pawl in'to engagement with first one and then the other of the ratchets 41,42, through a finger piece 43 connected to the arm/l0, the ribbon feed is reversed. A spring detent 44 engaging the butt 45 of .the finger piece, holds the pawl in mesh with either ratchet, or in idle position, as desired. The thrust of the impression hammer toward the typecarrier and platen, causes the pawl to move idly over the teeth of its ratchet; the return of the impression hammer to normal position under the influence of the spring 38,

engaging the pawl with the ratchet to turn the ribbon shaft. The impression hammer is prevented from turning on its stem 33, and thereby disengaging the pawl from the ratchet, by guide bars 46, the free ends of which are arranged to slide up and down against the inner vertical edges of the cheeks 31.

A resilient paper guiding finger 47 is journaled on the pintle and ,'adjustably held against the platen by a set'screw 48. Said finger carries an index 49 (see Fig. 7), to indicate the printing line on which the types of the auxiliary printing device will print. Such printing line is above that along which the usual key-operated types 1 strike.

The type-carrier-may be adjusted clear across the platen along the cross rod-5.

Variations may be resorted to within the scope of the invention and portions of the improvements may be used without others.

Having thus described my invention, I

claim 1. In a typcwriting machine, the combina- 3 tion with a platen, of an auxiliary typecarrier having types removably mounted thereon, a fixedcenter about which the typecarrler turns to afford access to the types,

and a pivotal center located 'eccentrically to.

bracket against turning, a pintle carried by the bracket, a type-carrier mounted to turn on the pintle,-the type-carrier having typesonthe pin tle, the type-carrier having types removably mount-ed therein, and swinging toward and from the platen to efiect an impression of the types, a paper finger journaled on the pintle, and a lock to hold the paper finger in contact with the platen.

l. The combination with a typewriter com? prising a rotary cylindrical platen having a firm s'urface suitable for receiving the 1mpressions of striking types, of a dating de-' vice with types thereon spaced from said platen to permit worksheets to be fed around the platen, said dating device movable to and from the platen without check, an impression hammer, and means to restrain said hammer during the movement of the dating device to the platen, said hammer releasable immediately subsequent to the contact of the dating device with the paper and operable by a snap action to impart a hammer blow to the dating device,

K and thus effect a clear impression ofthe da't-' l ing types on the paper notwithstanding the hardness of the platen surface.

5. The combination with a typewriter comprising a rotary cylindrical platen having a hard surface suitable to receive the impressions of the usual striking types, of a dating device with types thereon spaced from said platen to prevent interference with worksheets fed around the platen, said dating device movable towa'rd andfrom the platen without check, an impression hammer carried by the dating device to move therewith as the latter moves toward the platen, and,

restraining means for the impression ham: mer, releasable by the same stroke which sets the dating device against the paper and immediately subsequent thereto, the hammer operable when released to impart' a sharp blow tothe dating device and thus effect a clear impression of the dating types on the paper notwithstanding the hardness of the platen surface.

6. The combination with a typewriter comprising arotary cylindrical platen having a hard surface suitable for receiving the impressions of striking types, of a dating device with types thereon movable toward and from the platen without check to set the types of the-datingdevice against a worksheet on the platen and to remove said types from the work-sheet, sin-impression device,

and a holding latch preventing operation of strokeof the dating device and automatically released at the conclusion of said settingstroketo enable the'impression device to impart a sharpblow to said dating device and thus press the types firmly against the work-sheet to effect a clear imprint.

the impression ,device-during'the setting 7. The combination with a rotary typewriter platen, of a type carrier supported above and spaced from the platen, said carrier movable to and'from'the platen, an impression-device movable into and out of operative connection with the type carrier, and a yielding latch for detaining the impression device .in the path'of its operative move ment but adapted to yield; to a pressure thereagainst sufiicient to insure the delivery of a. blow to firmly press theitypes against thepaper and effect a clear imprint notwithstanding the hardness and curvature of the' platen surface. v

8. The combination with at .pewriter comprising a rotary cylindrical p aten having a hard surface'adapted to receive thejimpresr sions of swinging types which strike there; against, of a dating device with types the'revv on movable toward and from the platen, an impression devicermovable into and out of operative connection with the dating device,

and'means for detaining the impressionde-- vice at a point in the path of-its operative movement until overcome by a pressure thereagainst suflicientto insure the delivery of a blow to firmly press the types of said dating device against the paper and insure a clear imprint thereofi regardless of. the hardness of the platen surface. v

9. 'In a typewriting machine, the combination with a roller platen having a surface suitable for receiving the impact of types striking thereagainst, and of sufficient hardness to prevent indentations by the said types, of a type-carrier mountedto swing toward and from the platen, an impressiondevice operative to strike the said type-carrier subsequent to the engagement of its types with the paper on the platen, and a latch to restrain the impression device during the movement of the type-carrier toward the platen, said latch releasable by pressure applied to said impression device suflifiient to insure a quick powerful stroke of the impression device to effect a clearjmpression on the types notwithstanding the hardness of the platen.

10. In a typewriting machine, the combination with a platen haying a hard-surface to prevent type indentations, ofa type carrier having types movable toward and from the platen, an impressionhammer movable relatively to the type carrier to deliver a blow thereagainst, and serving as a handlethe paper on the, platen, and a yielding latch to normally maintain the hammer inoperative until overcome by a pressure sufficient to cause the delivery of 'a hammer blow which will insure a clear impression of the types notwithstandingthe hardness of the platen.

11. In a typewriting machine, the combination with a rotary platen having a hard surface to prevent type indentations, of a type carrier normally spaced from the platen to prevent interference with the work-sheets and mounted for movement toward the platen, a striking stemon the type carrier an impression hammersliding on the. stem, and a yielding latch to hold the hammer inoperative until overcomeby a pressure suitieient to deliver a sharp blow upon the outer end of the striking stem which will insure a clear impression of the types in the type carrier regardless of the hardness of the platen.

12. In a typewriting machine, the combination with a rotary platen having a surface of sufficient hardness to resist the blows of o the types, of an auxiliary type carrier mount- -ed for movement toward and from the platen,

an impression hammer supported by the carnor to deliver a blow thereagainst, a stop past which the hammer moves, and a yielding latch carried by the hammer to engage the stop and hold the hammer in inoperative I position until overcome by a pressurev sufiicient to dellver a blow which will insure a clear impression of the types in the type carrier notwithstanding the hardness of the platen surface.

13. In a typewriting machine, the combination with a platen having a substantially unyielding surface,'of an auxiliary type carrier mounted for movement toward and from the platen, and normally held away from the platen, an impression hammer supported by 14. In a typewriting machine, the com- F bination with a roller platen having a hard surface suitable for receiving-the impact of typ'esstriking thereagainst, of a dating device having types movable to and from the platen, a device having asnap actionfor effecting the lmpression .of the typesonsaid platen, and a yielding obstacle provided at a single point in the path of said impression device to be overcome thereby, the impression device'being freely movable independent1y=of said obstacle when said 'point hasbeen passed, said obstacle offering suflicient resistance to insure the operation of the impression device with great force upon the types, and thereby secure a clear impression" of the types notwithstanding the hardness of the platen surface.

' 15. In a typewriting machine, the combination with a rotary platen having a hard surface suitable for receiving the impactpf I types striking thereagainst, of a type-earner having types movable toward and from the platen, a manipulable impression hammer with straight line action operable by the same stroke which sets the type-carrier against the paper; and means for yieldingly obstructing the movement of the impression hammer at a single point only in'its path, the impression hammer being freely movable independently of said obstructing means when said point has been passed, said obstructing means offering sufficient resistance to the advance of the hammer to insure that the hammer shall deliver a firm blow against the types on said carrier.

16. In a front-strike typewriting machine, 1

the combination with a rotary platen, and usual types to print on the front face thereof, of an auxiliary type holder located above and spaced from the platen, types on said holder, said holder movable to bring the types against the platen at a point above the printing line of the usual types, and means to apply straight line impression force to said holder.

17. In' a typewriting machine, the com-- bination with a rotary platen, of usual types to print on the front face of the platen, an auxiliary type carrier pivotally supported above the platen and spaced therefrom, types on said carrier, means to swing said carrier about its pivot and bring the types against the-platen at a line above the printing line of the usual types, and means to carrier. I

18. In a typewriting machine, the combination with a rotary platen, ofusual types to print on the front; face of the platen, an auxiliary type carrier pivotally supported above the platen and spaced therefrom,

1 types on said carrier, means to swing said carrier about its pivot and bring the types against the platen at a line above the printing line of the usual types, and means to,

impart a straight line hammer blow to said carrier after it has been broughtto the platen. and thus impart a clear impression of the types on the work-sheet.

19. A typewriting machine having a dating device with tvpes thereon and mov-- able about a pivot into and out of operative relation with the platen, and impression means restrained and held inoperative during the forward, manually impelled impresi apply straight line impression force to said sion stroke of said dating device and re-- device thereby to accentuate the sharpness of leased at the completion of said stroke by a impact of its types upon the platen.

manual pressure on said dating device HENRY L. FBITZE. greater than that required to move the dat- Witnesses:

5 ing device to the platen, and operable When K. FRANKFQRT,

thus released to impart a blow to the dating C. RIPLEY.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

